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4.3L water pump leaking

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  • 4.3L water pump leaking

    My 2000 4.3L is leaking water from the little hole on the top of the water circulating pump on the engine. It is not overheating and is a small amount of water but I believe this is a sign it needs replaced. Is this correct?

    Thanks, Jim

  • #2
    Re: 4.3L water pump leaking

    Yes it is there to show you that the seals are bad and needs replaced.


    • #3
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      Re: 4.3L water pump leaking

      Yep, that's the weep hole. Indicator that it's going bad. Mine did that during first startup this year, but quit once the bushing got warm/lubed by the water. I think I have a season or two left and it'll be ready for replacement, too.
      1989 Starcraft 171S Select "Cap'n Crunch" / OMC Cobra 4.3 V6 / 432APRMED

      If you're going to keep that OMC Cobra, please for the love of everything good in the world, get an OMC factory service manual. Not a Clymers, Not a SELOC. You can find them on eBay.

      My boat repair website: http://transomfix.dcpolk.com